Home / 48,780.24-73,170.40-13,719.90

Finding the Fourth Proportional to 48,780.24, 73,170.40 and 13,719.90

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Solution

The fourth proportional to 48,780.24, 73,170.40 and 13,719.90 is: 20,579.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,780.24 : 73,170.40 = 13,719.90 : x
  2. Step 2: Convert to fraction form
    48,780.24/73,170.40 = 13,719.90/x
  3. Step 3: Cross multiply
    48,780.24x = 73,170.40 × 13,719.90
  4. Step 4: Simplify right side
    48,780.24x = 1,003,890,570.96
  5. Step 5: Solve for x
    x = 1,003,890,570.96/48,780.24
  6. Step 6: Final answer
    x = 20,579.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.